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2017 Sierra Denali Tri Mode Power Steps

paxman70
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paxman70 New Member

paxman70

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Good Morning, I have a 2017 Sierra Denali and my warranty  just expired (no surprise) and the the tri-mode running boards are staring to act up. The driver side will extend and automatically close when I open the door. If I put my foot on it before it auto closes it will stay open, however it does not extend all the way. Since it is no longer under warranty I am trying to troubleshoot it myself. I have lubed all the moving parts of the step, but no luck. Any thoughts?

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